Many calls not coming through but rings on their end. No missed call. Long-term issue

I've had a strange long-term issue where the phone will ring for the party calling in, but won't ring on my end. No missed call shows up. It occurs about half the time with or without WiFi calling on. This issue has plagued me since my Verizon Note 4 with Verizon service, my T-Mobile Note 4 with T-Mobile, and is still occurring on my T-Mobile Note 5.

The only way I know I've missed calls is that I use YouMail's email notification service which lets me know that someone got to my YouMail...

Many calls not coming through but rings on their end. No missed call. Long-term issue

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